.navbar{
    display: flex;
    justify-content: space-around;
    border-bottom: 2px solid #ccc;
    height: 50px;
    line-height: 46px;
    a{
        &.active{
            color:#4294ff;
            &::after{
                content: "";
                display: block;
                width: 80%;
                height: 2px;
                background-color: #4294ff;
                margin: 0 auto;
            }
        }
    }
}